SCRAPER CONVEYOR Russian patent published in 2011 - IPC B65G19/04 B65G19/18 

FIELD: packing industry.

SUBSTANCE: scraper conveyor comprises a scraper-chain traction contour (2) closed on drive (1) and end sprockets, two driving units and a fixed frame (6). Drive units and the drive sprocket are installed on an additional frame (7) with the possibility of its displacement parallel to the longitudinal axis (8) of the conveyor relative to the guides of the fixed frame. The additional frame is spring-loaded with spiral compression springs (9) to a stop (10) of the fixed frame at the side of the end sprocket of the conveyor. The stop may move along the longitudinal axis of the conveyor and be fixed. At the opposite side the additional frame is limited with a limiter (11) mounted on the fixed frame. The total working force of compression springs and their working travel is determined using appropriate formulas.

EFFECT: cyclic oscillations of scraper-chain traction contour of the conveyor are reduced, and appropriate reduction of dynamic loads is provided at the scraper-chain traction contour and the drive sprocket.

3 cl, 2 dwg